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This commit is contained in:
Tatiana A. Nurnberg 2009-08-31 12:56:01 -07:00
commit ff50b26457
7 changed files with 97 additions and 161 deletions
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4
man/Makefile.am
View File

@ -24,8 +24,8 @@ EXTRA_DIST = $(man1_MANS) $(man8_MANS)
# 1) not needed in Unix binary packages,
# 2) programs not generated in 5.0:
install-data-hook:
rm -f $(DESTDIR)$(manlibdir)/man1/make_win_*
rm -f $(DESTDIR)$(manlibdir)/man1/ndb_print_*
rm -f $(DESTDIR)$(mandir)/man1/make_win_*
rm -f $(DESTDIR)$(mandir)/man1/ndb_print_*
# Don't update the files from bitkeeper
%::SCCS/s.%

28
mysql-test/r/subselect.result
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@ -4474,4 +4474,32 @@ id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY C ALL NULL NULL NULL NULL 20 Using where
DROP TABLE C;
# End of test for bug#45061.
#
# Bug #46749: Segfault in add_key_fields() with outer subquery level
# field references
#
CREATE TABLE t1 (
a int,
b int,
UNIQUE (a), KEY (b)
);
INSERT INTO t1 VALUES (1,1), (2,1);
CREATE TABLE st1 like t1;
INSERT INTO st1 VALUES (1,1), (2,1);
CREATE TABLE st2 like t1;
INSERT INTO st2 VALUES (1,1), (2,1);
EXPLAIN
SELECT MAX(b), (SELECT COUNT(*) FROM st1,st2 WHERE st2.b <= t1.b)
FROM t1
WHERE a = 230;
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables
2 DEPENDENT SUBQUERY st1 index NULL a 5 NULL 2 Using index
2 DEPENDENT SUBQUERY st2 index b b 5 NULL 2 Using where; Using index
SELECT MAX(b), (SELECT COUNT(*) FROM st1,st2 WHERE st2.b <= t1.b)
FROM t1
WHERE a = 230;
MAX(b) (SELECT COUNT(*) FROM st1,st2 WHERE st2.b <= t1.b)
NULL 0
DROP TABLE t1, st1, st2;
End of 5.0 tests.

111
mysql-test/r/view.result
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@ -3704,117 +3704,6 @@ SELECT * FROM v1 IGNORE INDEX (c2) WHERE c2=2;
ERROR HY000: Key 'c2' doesn't exist in table 'v1'
DROP VIEW v1;
DROP TABLE t1;
#
# Bug #45806 crash when replacing into a view with a join!
#
CREATE TABLE t1(a INT UNIQUE);
CREATE VIEW v1 AS SELECT t1.a FROM t1, t1 AS a;
INSERT INTO t1 VALUES (1), (2);
REPLACE INTO v1(a) SELECT 1 FROM t1,t1 AS c;
SELECT * FROM v1;
a
1
2
1
2
REPLACE INTO v1(a) SELECT 3 FROM t1,t1 AS c;
SELECT * FROM v1;
a
1
2
3
1
2
3
1
2
3
DELETE FROM t1 WHERE a=3;
INSERT INTO v1(a) SELECT 1 FROM t1,t1 AS c
ON DUPLICATE KEY UPDATE `v1`.`a`= 1;
SELECT * FROM v1;
a
1
2
1
2
CREATE VIEW v2 AS SELECT t1.a FROM t1, v1 AS a;
REPLACE INTO v2(a) SELECT 1 FROM t1,t1 AS c;
SELECT * FROM v2;
a
1
2
1
2
1
2
1
2
REPLACE INTO v2(a) SELECT 3 FROM t1,t1 AS c;
SELECT * FROM v2;
a
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
INSERT INTO v2(a) SELECT 1 FROM t1,t1 AS c
ON DUPLICATE KEY UPDATE `v2`.`a`= 1;
SELECT * FROM v2;
a
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
DROP VIEW v1;
DROP VIEW v2;
DROP TABLE t1;
# -- End of test case for Bug#45806
# -----------------------------------------------------------------
# -- Bug#40825: Error 1356 while selecting from a view
# -- with a "HAVING" clause though query works

31
mysql-test/t/subselect.test
View File

@ -3450,4 +3450,35 @@ DROP TABLE C;
--echo # End of test for bug#45061.
--echo #
--echo # Bug #46749: Segfault in add_key_fields() with outer subquery level
--echo # field references
--echo #
CREATE TABLE t1 (
a int,
b int,
UNIQUE (a), KEY (b)
);
INSERT INTO t1 VALUES (1,1), (2,1);
CREATE TABLE st1 like t1;
INSERT INTO st1 VALUES (1,1), (2,1);
CREATE TABLE st2 like t1;
INSERT INTO st2 VALUES (1,1), (2,1);
# should have "impossible where"
EXPLAIN
SELECT MAX(b), (SELECT COUNT(*) FROM st1,st2 WHERE st2.b <= t1.b)
FROM t1
WHERE a = 230;
# should not crash
SELECT MAX(b), (SELECT COUNT(*) FROM st1,st2 WHERE st2.b <= t1.b)
FROM t1
WHERE a = 230;
DROP TABLE t1, st1, st2;
--echo End of 5.0 tests.

32
mysql-test/t/view.test
View File

@ -3680,38 +3680,6 @@ SELECT * FROM v1 IGNORE INDEX (c2) WHERE c2=2;
DROP VIEW v1;
DROP TABLE t1;
--echo #
--echo # Bug #45806 crash when replacing into a view with a join!
--echo #
CREATE TABLE t1(a INT UNIQUE);
CREATE VIEW v1 AS SELECT t1.a FROM t1, t1 AS a;
INSERT INTO t1 VALUES (1), (2);
REPLACE INTO v1(a) SELECT 1 FROM t1,t1 AS c;
SELECT * FROM v1;
REPLACE INTO v1(a) SELECT 3 FROM t1,t1 AS c;
SELECT * FROM v1;
DELETE FROM t1 WHERE a=3;
INSERT INTO v1(a) SELECT 1 FROM t1,t1 AS c
ON DUPLICATE KEY UPDATE `v1`.`a`= 1;
SELECT * FROM v1;
CREATE VIEW v2 AS SELECT t1.a FROM t1, v1 AS a;
REPLACE INTO v2(a) SELECT 1 FROM t1,t1 AS c;
SELECT * FROM v2;
REPLACE INTO v2(a) SELECT 3 FROM t1,t1 AS c;
SELECT * FROM v2;
INSERT INTO v2(a) SELECT 1 FROM t1,t1 AS c
ON DUPLICATE KEY UPDATE `v2`.`a`= 1;
SELECT * FROM v2;
DROP VIEW v1;
DROP VIEW v2;
DROP TABLE t1;
--echo # -- End of test case for Bug#45806
--echo # -----------------------------------------------------------------
--echo # -- Bug#40825: Error 1356 while selecting from a view
--echo # -- with a "HAVING" clause though query works

11
mysys/mf_iocache.c
View File

@ -233,10 +233,13 @@ int init_io_cache(IO_CACHE *info, File file, uint cachesize,
buffer_block = cachesize;
if (type == SEQ_READ_APPEND)
buffer_block *= 2;
if ((info->buffer=
(byte*) my_malloc(buffer_block,
MYF((cache_myflags & ~ MY_WME) |
(cachesize == min_cache ? MY_WME : 0)))) != 0)
/*
Unset MY_WAIT_IF_FULL bit if it is set, to prevent conflict with
MY_ZEROFILL.
*/
myf flag = MYF((cache_myflags & ~ (MY_WME | MY_WAIT_IF_FULL)) |
(cachesize == min_cache ? MY_WME : 0));
if ((info->buffer= (byte*) my_malloc(buffer_block, flag)) != 0)
{
info->write_buffer=info->buffer;
if (type == SEQ_READ_APPEND)

41
sql/sql_select.cc
View File

@ -3207,6 +3207,28 @@ add_key_equal_fields(KEY_FIELD **key_fields, uint and_level,
}
}
/**
Check if an expression is a non-outer field.
Checks if an expression is a field and belongs to the current select.
@param field Item expression to check
@return boolean
@retval TRUE the expression is a local field
@retval FALSE it's something else
*/
inline static bool
is_local_field (Item *field)
{
field= field->real_item();
return field->type() == Item::FIELD_ITEM &&
!((Item_field *)field)->depended_from;
}
static void
add_key_fields(JOIN *join, KEY_FIELD **key_fields, uint *and_level,
COND *cond, table_map usable_tables,
@ -3282,13 +3304,12 @@ add_key_fields(JOIN *join, KEY_FIELD **key_fields, uint *and_level,
{
Item **values;
// BETWEEN, IN, NE
if (cond_func->key_item()->real_item()->type() == Item::FIELD_ITEM &&
if (is_local_field (cond_func->key_item()) &&
!(cond_func->used_tables() & OUTER_REF_TABLE_BIT))
{
values= cond_func->arguments()+1;
if (cond_func->functype() == Item_func::NE_FUNC &&
cond_func->arguments()[1]->real_item()->type() == Item::FIELD_ITEM &&
!(cond_func->arguments()[0]->used_tables() & OUTER_REF_TABLE_BIT))
is_local_field (cond_func->arguments()[1]))
values--;
DBUG_ASSERT(cond_func->functype() != Item_func::IN_FUNC ||
cond_func->argument_count() != 2);
@ -3304,9 +3325,7 @@ add_key_fields(JOIN *join, KEY_FIELD **key_fields, uint *and_level,
for (uint i= 1 ; i < cond_func->argument_count() ; i++)
{
Item_field *field_item;
if (cond_func->arguments()[i]->real_item()->type() == Item::FIELD_ITEM
&&
!(cond_func->arguments()[i]->used_tables() & OUTER_REF_TABLE_BIT))
if (is_local_field (cond_func->arguments()[i]))
{
field_item= (Item_field *) (cond_func->arguments()[i]->real_item());
add_key_equal_fields(key_fields, *and_level, cond_func,
@ -3322,8 +3341,7 @@ add_key_fields(JOIN *join, KEY_FIELD **key_fields, uint *and_level,
bool equal_func=(cond_func->functype() == Item_func::EQ_FUNC ||
cond_func->functype() == Item_func::EQUAL_FUNC);
if (cond_func->arguments()[0]->real_item()->type() == Item::FIELD_ITEM &&
!(cond_func->arguments()[0]->used_tables() & OUTER_REF_TABLE_BIT))
if (is_local_field (cond_func->arguments()[0]))
{
add_key_equal_fields(key_fields, *and_level, cond_func,
(Item_field*) (cond_func->arguments()[0])->real_item(),
@ -3331,9 +3349,8 @@ add_key_fields(JOIN *join, KEY_FIELD **key_fields, uint *and_level,
cond_func->arguments()+1, 1, usable_tables,
sargables);
}
if (cond_func->arguments()[1]->real_item()->type() == Item::FIELD_ITEM &&
cond_func->functype() != Item_func::LIKE_FUNC &&
!(cond_func->arguments()[1]->used_tables() & OUTER_REF_TABLE_BIT))
if (is_local_field (cond_func->arguments()[1]) &&
cond_func->functype() != Item_func::LIKE_FUNC)
{
add_key_equal_fields(key_fields, *and_level, cond_func,
(Item_field*) (cond_func->arguments()[1])->real_item(),
@ -3345,7 +3362,7 @@ add_key_fields(JOIN *join, KEY_FIELD **key_fields, uint *and_level,
}
case Item_func::OPTIMIZE_NULL:
/* column_name IS [NOT] NULL */
if (cond_func->arguments()[0]->real_item()->type() == Item::FIELD_ITEM &&
if (is_local_field (cond_func->arguments()[0]) &&
!(cond_func->used_tables() & OUTER_REF_TABLE_BIT))
{
Item *tmp=new Item_null;